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The STEVAL-ISA152V1 product evaluation board is a step-down switching
power supply based on the L7987 regulator in an HTSSOP16 package. The output voltage can be set
starting from 0.8 V. Low drop-out operation, with almost 100% duty cycle, can be
achieved.

The L7987 is a 61 V, 3 A step-down asynchronous switching regulator with
embedded power MOSFET caable of delivering up to 3 A of current, depending on the application
conditions.

The embedded switch-over feature on the VBIAS pin and the light load
management (pulse skipping) are intended to maximize power conversion efficiency across the
entire load range.

The soft-start, current limit threshold and the switching frequency
are adjustable for application optimization.

The device includes an internal 250 kHz oscillator that can be
externally adjusted up to 1.5 MHz; two L7987 regulators can be synchronized in a 180°
out-of-phase configuration for reduced total input RMS current

Quality & Reliability

Part Number

Marketing Status

Package

Grade

RoHS Compliance Grade

Material Declaration**

STEVAL-ISA152V1

Active

CARD

Industrial

Ecopack2

test

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support
for information on specific devices.